Contacts of the helix formed by residues 832 - 860 (chain A) in PDB entry 1DQ8
Residue contacts within the protein are
derived with the CSU software (Sobolev V., Sorokine A.,
Prilusky J., Abola E.E. and Edelman M. (1999) Automated
analysis of interatomic contacts in proteins.
Bioinformatics, 15, 327-332). A
short description of the analytical approach
is given at the end of the page.
Note:
Non-standard 3 letter residue
codes indicate a heterogroup. To identify
and analyse, use LPC software
Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC - hydrophobic-hydrophilic contact (destabilizing contact)
+/- - indicates presence/absence of a specific contacts
* - indicates residues forming contacts by their side chain
(including CA atoms)
Residues in contact with GLY 832 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
586A ASP* 5.3 2.5 - - - -
652A GLY* 3.1 24.2 - - - -
653A ASP* 2.9 26.4 + - - -
704A LYS* 4.9 0.3 - - - -
831A PRO* 1.3 70.7 - - - +
833A GLU* 1.3 55.9 + - - +
835A ALA* 3.4 3.9 + - - +
836A ARG* 3.0 44.7 + - - +
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Residues in contact with GLU 833 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
653A ASP* 4.1 0.2 - - - -
827A CYS* 4.0 9.6 - - - -
830A ASN* 3.0 40.0 + - + +
832A GLY* 1.3 76.2 - - - +
834A ASN* 1.3 61.4 + - - +
836A ARG* 2.7 44.2 + - - +
837A GLN* 2.9 41.7 + - + +
840A ARG* 4.6 11.8 + - - -
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Residues in contact with ASN 834 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
653A ASP* 2.9 10.3 + - - +
804A THR* 3.6 7.6 - - - +
822A GLY 3.9 6.6 + - - +
823A VAL* 3.4 40.1 - - - +
824A GLN 3.3 12.9 + - - -
825A GLY 2.7 21.0 + - - -
826A ALA 3.6 13.9 + - - -
827A CYS* 3.7 15.0 - - - +
833A GLU* 1.3 77.8 - - - +
835A ALA* 1.3 59.1 + - - +
837A GLN* 3.4 4.2 + - - +
838A LEU* 3.0 24.1 + - - +
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Residues in contact with ALA 835 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
652A GLY 4.5 0.2 - - - +
653A ASP* 3.1 34.9 + - - +
704A LYS* 3.9 22.0 - - - +
802A ILE* 3.7 7.1 - - - +
803A GLY* 4.3 9.9 - - - -
804A THR* 4.0 9.8 - - - +
832A GLY 3.7 7.4 - - - +
834A ASN* 1.3 75.3 - - - +
836A ARG* 1.3 59.1 + - - +
838A LEU* 3.2 4.5 + - - +
839A ALA* 2.9 28.1 + - - +
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Residues in contact with ARG 836 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
583A VAL* 4.0 27.5 - - + +
586A ASP* 3.9 21.2 + - - +
650A ARG* 4.4 18.2 - - - +
704A LYS* 4.2 11.7 - - - +
830A ASN* 3.7 12.7 + - - +
831A PRO 3.0 21.6 + - - -
832A GLY* 3.0 25.5 + - - +
833A GLU* 2.7 59.2 + - - +
835A ALA* 1.3 76.3 - - - +
837A GLN* 1.3 63.5 + - - +
839A ALA* 3.2 6.6 + - - +
840A ARG* 3.0 31.5 + - - +
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Residues in contact with GLN 837 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
546A LEU* 4.6 2.8 - - - +
547A ASP* 5.2 1.6 + - - +
549A LYS* 2.9 29.9 + - - +
551A PHE* 3.7 25.9 - - + -
823A VAL* 3.7 20.2 - - + -
833A GLU* 2.9 29.9 + - + +
834A ASN* 3.6 6.3 - - - +
836A ARG* 1.3 79.0 - - - +
838A LEU* 1.3 55.7 + - - +
840A ARG* 3.2 25.8 + - - +
841A ILE* 2.9 34.6 + - + +
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Residues in contact with LEU 838 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
760A ILE* 4.6 15.0 - - + -
764A CYS* 4.7 2.2 - - + -
766A GLN* 3.9 11.9 - - + +
802A ILE* 3.6 32.8 - - + -
804A THR* 4.1 9.2 - - + -
818A LEU* 3.9 23.3 - - + -
821A LEU* 3.7 30.1 - - + -
823A VAL* 4.2 10.1 - - + +
834A ASN 3.0 14.0 + - - +
835A ALA 3.2 8.3 + - - +
837A GLN* 1.3 73.2 - - - +
839A ALA* 1.3 60.8 + - - +
841A ILE* 3.1 11.3 + - + +
842A VAL* 2.8 29.5 + - + +
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Residues in contact with ALA 839 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
704A LYS* 3.7 33.7 - - + -
706A VAL* 3.8 9.9 - - + -
800A ILE* 3.4 27.5 - - + +
802A ILE* 4.2 3.1 - - + +
835A ALA 2.9 14.0 + - - +
836A ARG 3.4 9.0 - - - +
838A LEU* 1.3 76.8 - - - +
840A ARG* 1.3 55.8 + - - +
842A VAL* 3.2 2.3 + - - -
843A CYS* 2.9 26.2 + - - +
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Residues in contact with ARG 840 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
546A LEU* 3.5 10.4 - - + +
547A ASP* 3.3 23.5 + - - +
549A LYS* 5.2 4.6 - - - +
581A SER* 2.9 49.2 + - - +
582A ARG* 4.1 12.5 - - - +
583A VAL* 3.6 24.0 - - + +
706A VAL* 4.1 13.5 - - + -
833A GLU* 4.6 11.0 + - - -
836A ARG* 3.0 21.6 + - - +
837A GLN* 3.5 32.6 + - - +
839A ALA* 1.3 71.7 - - - +
841A ILE* 1.3 61.0 + - - +
843A CYS* 3.3 2.3 + - - +
844A GLY 2.9 24.8 + - - -
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Residues in contact with ILE 841 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
544A LEU* 4.0 4.2 - - + +
546A LEU* 3.8 5.6 - - + -
551A PHE* 3.6 42.8 - - + -
553A VAL* 4.1 20.9 - - + -
760A ILE* 5.1 2.0 - - + -
821A LEU* 3.8 31.4 - - + +
823A VAL* 4.6 1.3 - - + -
837A GLN* 2.9 33.7 + - + +
838A LEU* 3.1 15.9 + - + +
840A ARG* 1.3 76.4 - - - +
842A VAL* 1.3 55.5 + - - +
844A GLY* 3.2 0.7 + - - -
845A THR* 2.7 48.1 + - - +
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Residues in contact with VAL 842 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
756A ILE* 4.3 0.3 - - - +
757A VAL* 3.9 29.8 - - + -
760A ILE* 4.0 34.5 - - + -
761A TYR* 4.2 8.1 - - + -
797A MET* 4.6 0.2 - - + -
800A ILE* 3.9 20.0 - - + -
802A ILE* 3.8 21.1 - - + -
838A LEU* 2.8 21.2 + - + +
839A ALA* 3.2 8.5 + - - +
841A ILE* 1.3 71.0 - - + +
843A CYS* 1.3 65.2 + - - +
845A THR* 3.9 1.2 - - - -
846A VAL* 3.0 26.5 + - + +
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Residues in contact with CYS 843 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
706A VAL* 3.6 37.5 - - + -
708A CYS* 3.8 12.7 - - + +
795A CYS* 3.5 27.8 - - - +
797A MET* 3.8 30.3 - - - -
800A ILE* 4.3 1.3 - - + -
839A ALA 2.9 10.2 + - - +
840A ARG 3.8 2.2 - - - +
841A ILE 3.3 0.2 - - - -
842A VAL* 1.3 76.2 - - - +
844A GLY* 1.3 61.8 + - - +
846A VAL* 3.4 3.5 + - - +
847A MET* 3.1 22.2 + - - +
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Residues in contact with GLY 844 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
544A LEU* 4.1 18.6 - - - +
546A LEU* 4.7 4.7 - - - -
573A ILE* 4.3 2.4 - - - +
579A ALA* 5.9 0.4 - - - -
708A CYS* 3.7 20.8 - - - -
840A ARG 2.9 15.1 + - - -
841A ILE 3.7 2.7 - - - -
843A CYS* 1.3 75.0 - - - +
845A THR* 1.3 58.9 + - - +
847A MET* 3.2 6.4 + - - +
848A ALA* 3.1 24.6 + - - +
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Residues in contact with THR 845 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
541A ALA* 5.5 0.2 - - + -
544A LEU* 3.5 15.6 - - - +
553A VAL* 3.5 25.6 - - + +
555A MET* 4.6 3.8 - - - -
566A THR* 3.4 24.3 - - + +
570A CYS* 5.4 2.2 - - - -
756A ILE* 3.6 19.5 - - + +
760A ILE* 3.9 13.0 - - + +
841A ILE* 2.7 26.5 + - - +
842A VAL 3.9 0.4 - - - -
844A GLY* 1.3 69.6 - - - +
846A VAL* 1.3 66.7 + - - +
848A ALA* 3.2 7.8 + - - +
849A GLY* 2.9 19.6 + - - -
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Residues in contact with VAL 846 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
753A ALA* 3.8 33.0 - - + +
756A ILE* 3.6 26.6 - - + +
757A VAL* 4.1 5.2 - - + -
777A CYS* 4.1 9.0 - - - -
795A CYS* 4.3 3.6 - - - -
797A MET* 3.7 30.1 - - + -
842A VAL 3.0 20.1 + - - +
843A CYS 3.5 4.7 - - - +
844A GLY 3.3 0.2 - - - -
845A THR* 1.3 75.1 - - - +
847A MET* 1.3 54.8 + - - +
849A GLY* 2.9 2.8 + - - -
850A GLU* 2.7 46.2 + - + +
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Residues in contact with MET 847 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
573A ILE* 3.6 15.7 - - + -
579A ALA* 3.6 22.4 - - + -
708A CYS* 3.8 12.6 - - - +
709A GLU* 3.6 29.8 - - - +
710A ALA* 3.5 27.1 - - + -
793A ILE* 3.8 31.1 - - + +
794A SER* 4.3 2.2 - - - -
795A CYS* 3.6 22.4 - - + -
843A CYS 3.1 12.3 + - - +
844A GLY* 3.2 7.4 + - - +
846A VAL* 1.3 77.8 - - - +
848A ALA* 1.3 56.0 + - - +
850A GLU* 3.4 2.0 + - - +
851A LEU* 2.9 30.2 + - + +
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Residues in contact with ALA 848 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
544A LEU* 4.8 0.4 - - + -
566A THR* 3.8 10.1 - - + +
569A GLY* 3.3 16.6 - - - -
570A CYS* 3.6 35.0 - - - +
573A ILE* 3.8 18.6 - - + +
844A GLY 3.1 10.7 + - - +
845A THR* 3.5 8.7 - - - +
846A VAL 3.2 0.2 - - - -
847A MET* 1.3 76.2 - - - +
849A GLY* 1.3 62.3 + - - +
851A LEU* 3.4 2.7 + - - +
852A SER* 3.2 18.2 + - - -
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Residues in contact with GLY 849 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
565A SER* 4.4 0.8 + - - -
566A THR* 4.4 13.9 - - - +
752A HIS* 3.0 22.9 + - - -
756A ILE* 4.0 11.7 - - - -
845A THR 2.9 14.0 + - - -
846A VAL 2.9 3.3 + - - -
848A ALA* 1.3 78.3 - - - +
850A GLU* 1.3 61.8 + - - +
852A SER* 3.3 2.8 + - - -
853A LEU 3.0 20.8 + - - -
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Residues in contact with GLU 850 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
736A ASN* 4.0 1.9 + - - -
750A ASN* 4.0 4.5 - - - -
751A ALA* 2.7 28.5 + - - +
752A HIS* 2.8 34.4 + - - -
753A ALA* 3.6 6.0 + - - -
779A THR* 2.8 36.6 + - + +
781A MET* 4.7 0.9 - - - -
793A ILE* 4.5 3.6 - - + -
795A CYS* 3.9 7.9 - - - -
846A VAL* 2.7 33.1 + - + +
847A MET* 3.6 6.7 - - - +
849A GLY* 1.3 71.3 - - - +
851A LEU* 1.3 62.3 + - - +
853A LEU* 5.0 0.2 - - - -
854A MET* 2.8 35.3 + - + +
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Residues in contact with LEU 851 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
569A GLY* 4.2 9.2 - - - +
572A ALA* 4.4 3.6 - - + -
573A ILE* 3.7 29.6 - - + -
712A ILE* 3.8 23.3 - - + -
721A LEU* 3.9 16.1 - - + +
728A MET* 3.6 16.4 - - + +
791A LEU* 3.7 29.6 - - + -
793A ILE* 3.8 26.0 - - + +
847A MET 2.9 17.0 + - - +
848A ALA 3.5 4.9 - - - +
850A GLU* 1.3 78.1 - - - +
852A SER* 1.3 56.0 + - - +
855A ALA* 3.0 29.3 + - - +
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Residues in contact with SER 852 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
100A COA 2.9 14.3 + - - +
565A SER* 2.8 41.1 + - - -
568A ARG* 3.0 29.7 + - - +
569A GLY* 3.9 4.9 - - - -
721A LEU* 4.3 6.3 - - - -
848A ALA 3.2 10.5 + - - -
849A GLY 3.3 1.1 + - - -
851A LEU* 1.3 77.5 - - - +
853A LEU* 1.3 64.3 + - - +
855A ALA 3.3 0.7 + - - -
856A ALA* 3.0 19.9 + - - +
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Residues in contact with LEU 853 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
100A COA 3.4 35.9 - - - +
200A MAH 3.6 31.4 - - + +
565A SER* 3.8 1.0 + - - -
751A ALA* 3.7 11.0 - - + -
752A HIS* 3.5 41.7 - - + +
849A GLY 3.0 7.1 + - - +
850A GLU 4.4 1.1 - - - +
852A SER* 1.3 76.3 - - - +
854A MET* 1.3 59.8 + - - +
856A ALA* 3.2 3.4 + - + +
857A LEU* 2.9 41.9 + - + +
862A LEU* 3.9 19.3 - - + -
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Residues in contact with MET 854 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
728A MET* 3.8 11.7 - - + +
731A VAL* 3.4 33.7 - - + +
732A ASN* 3.4 31.4 - - + +
735A LYS* 3.7 13.5 - - + -
736A ASN* 3.5 20.4 - - - +
751A ALA* 3.7 20.9 - - + -
781A MET* 3.7 20.2 - - + -
850A GLU* 2.8 30.3 + - + +
853A LEU* 1.3 75.4 - - - +
855A ALA* 1.3 56.7 + - - +
857A LEU* 3.3 7.1 + - - +
858A ALA* 2.9 30.0 + - - +
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Residues in contact with ALA 855 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
568A ARG* 4.0 4.0 - - - +
721A LEU* 3.3 41.7 - - + +
723A THR* 3.9 4.4 - - + +
728A MET* 3.4 16.5 - - - -
851A LEU 3.0 18.8 + - - +
852A SER 3.5 5.4 - - - +
853A LEU 3.2 0.2 - - - -
854A MET* 1.3 76.4 - - - +
856A ALA* 1.3 59.1 + - - +
858A ALA* 3.2 3.6 + - - +
859A ALA* 2.9 30.4 + - - +
----------------------------------------------------------
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Residues in contact with ALA 856 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
100A COA 3.8 25.6 - - - +
568A ARG* 4.0 6.7 - - - +
852A SER 3.0 13.2 + - - +
853A LEU* 3.2 8.7 + - + +
855A ALA* 1.3 76.7 - - - +
857A LEU* 1.3 57.4 + - - +
860A GLY 2.9 7.1 + - - -
861A HIS* 2.5 56.6 + - + -
862A LEU* 3.7 4.3 + - - +
----------------------------------------------------------
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Residues in contact with LEU 857 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
200A MAH 4.1 2.0 - - - +
731A VAL* 4.3 10.3 - - + -
735A LYS* 3.6 41.1 - - + +
853A LEU* 2.9 36.8 + - + +
854A MET* 3.6 10.1 - - - +
856A ALA* 1.3 75.4 - - - +
858A ALA* 1.3 63.1 + - - +
860A GLY* 3.3 11.9 + - - -
862A LEU* 4.0 18.4 - - + -
681B LEU 3.9 13.0 - - - +
682B ALA* 4.4 6.1 - - + -
683B VAL* 4.0 36.2 + - + +
684B SER* 4.2 8.5 - - - +
----------------------------------------------------------
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Residues in contact with ALA 858 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
723A THR* 3.7 20.7 + - - +
727A ALA* 4.0 20.1 - - + +
728A MET* 4.3 4.3 - - - +
731A VAL* 3.8 24.4 - - + +
854A MET 2.9 16.8 + - - +
855A ALA* 3.2 4.9 + - - +
857A LEU* 1.3 79.0 - - - +
859A ALA* 1.3 57.4 + - - +
860A GLY 3.7 0.2 + - - -
681B LEU 4.8 1.9 - - - +
----------------------------------------------------------
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Residues in contact with ALA 859 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
722A LYS* 3.4 26.7 - - + +
723A THR* 4.4 2.9 - - - -
855A ALA 2.9 15.3 + - - +
856A ALA 4.2 0.2 - - - +
858A ALA* 1.3 76.3 - - - +
860A GLY* 1.3 61.4 + - - +
861A HIS* 3.4 34.7 + - + +
----------------------------------------------------------
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Residues in contact with GLY 860 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
856A ALA 2.9 4.8 + - - -
857A LEU* 3.3 11.5 + - - -
858A ALA 3.4 0.8 + - - -
859A ALA* 1.3 80.0 - - - +
861A HIS* 1.3 63.4 + - - +
862A LEU 3.5 3.4 + - - -
863A VAL 4.9 2.9 + - - -
665B GLU* 4.7 10.2 - - - +
----------------------------------------------------------
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A short description of the
analytical approach
The contact analysis used in this page
is based upon the approach
developed in:
Sobolev V., Wade R.C., Vriend G.
and Edelman M. PROTEINS (1996)
25, 120-129.
Contact legitimacy depends on the hydrophobic-hydrophilic
properties of the contacting atoms. In order to
define it, for each inter-atomic contact,
eight atom classes have been introduced:
I Hydrophilic - N and O that can donate and accept hydrogen bonds
(e.g., oxygen of hydroxyl group of Ser. or Thr)
II Acceptor - N or O that can only accept a hydrogen bond
III Donor - N that can only donate a hydrogen bond
IV Hydrophobic - Cl, Br, I and all C atoms that are not in
aromatic rings and do not have a covalent bond to
a N or O atom
V Aromatic - C in aromatic rings irrespective of any other
bonds formed by the atom
VI Neutral - C atoms that have a covalent bond to at least one
atom of class I or two or more atoms from class II
or III; atoms; S, F, P, and metal atoms in all cases
VII Neutral-donor - C atoms that have a covalent bond with only one
atom of class III
VIII Neutral-acceptor - C atoms that have a covalent bond with only
one atom of class II
For each pair of contacts the state of legitimacy
is shown below:
Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
Atomic class I II III IV V VI VII VIII
------------------------------------------------------------
I (Hydrophilic) + + + - + + + +
II (Acceptor) + - + - + + + -
III (Donor) + + - - + + - +
IV (Hydrophobic) - - - + + + + +
V (Aromatic) + + + + + + + +
VI (Neutral) + + + + + + + +
VII (Neutral-donor) + + - + + + - +
VIII (Neutral-acceptor) + - + + + + + -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically
assigned based on the atomic coordinates. However, in
three cases (see below) the automatic assignment
is currently ambiguous. In these
cases, the user is advised to manually analyse
the full list of contacts using
LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are
considered "aromatic" (Class V) if the ring is approximately
planar, and "hydrophobic" (Class IV) or "neutral" (Classes
VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
"hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
"carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).
Please E-mail any
questions and/or suggestions concerning this page to
Vladimir.Sobolev@weizmann.ac.il